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Corrosion can present a problem below 7.0. As the pH falls below 7.2, chlorine become increasingly more aggressive and irritating. Depending upon the type of pool vinyl lined or masonry - corrosive low pH conditions can cause surface etching, liner wrinkling and equipment damage. A pH of 7.2-7.6, helps assure bather comfort, allows effective sanitizing and helps avoid corrosion.

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15y ago
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11y ago

pH gradually moves lower when you are using tablets. This is normal. It means that you will have to add regular baking soda, that you can buy anywhere. Test the pH the following day with an OTO tester. Hatawa

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11y ago

Your pool's Ph should be 7.4. If below this add sodium carbonate. (baking soda) As a rough rule of thumb, I add in 1/2 pound for each .1 below 7.4. - Let it circulate and test again in 24 hours. -DO NOT add chlorine until Ph is at least 7.2.

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15y ago

if you are just having a general swim then yes, but if it is a race of sorts then no.

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10y ago

This will depend on the pH levels as well as how much you use the heater. I have seen pH levels of 5.5 cause e heat exchenger to go from brand new to ruined in as little as 6 weeks.

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15y ago

The water will irritate your skin.

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11y ago

Buy some PH down.

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Anonymous

Lvl 1
3y ago

yes

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Q: How long to damage a pool heater if you have low pH?
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